Note that the names of
languages are all in Persian, and are
sorted by Persian rules.

Which selection would get you
back to English ??

(Hint: if you want to explore
like this, use a different tab or
window for your explorations, and leave
the original dialogue available in
another for when you want to reset to
your current language.)

Of course, the point is really
that a Persian person taken to the
English site may have as much trouble
finding their way to the appropriate
user interface language as the curious
explorer does in getting back.
In
my opinion it would help a great deal to
write each language name in its own script
and language.
You
can read more about that in the W3C
Internationalization article at
http://www.w3.org/International/questions/qa-navigation-select
.